Woven-wire mattress



(No Model.)

A. BELL. WOVEN WIRE MATTRESS.

No. 488,378. Patented Dec. 20,1892.

WITNESSES? INVENTDR AMT truce.

ALONZO BELL, OF PHILADELPHIA, PENNSYLVANIA.

OVEN-WIRE MATTRESS.

SPECIFICATION forming part of Letters Patent No. 488,378, dated December20, 1892.

.Lpplication filed July 26, 1892. Serial No. 141,266. (No model.)

To all whom it may concern:

Be it known that I, ALoNzo BELL, a citizen of the United States, and aresident of the city and county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inWVoven-WVire Mattresses, of which the following is a specification.

My invention relates to improvements in woven wire mattresses and theobject of my invention is to furnish a device by means of which thewoven wire surface of a mattress may be prevented from sagging downafter it has been for some time in use.

WVoven wire mattresses, as ordinarily constructed, consist of a top madeof a sheet of woven wire, the edges of which are surrounded and attachedto a metal frame, usually a stout piece of iron or steel wire, and abottom of wooden or metallic slats to which are attached the lower endsof helical springs, the upper ends of which areincorporated with or bearagainst the sheet of woven wire. Sometimes the bottom, instead of beingformed of slats, is made of woven wire and is similar to the top; inthis case the springs bear against both the bottom and top sheets ofwire. All mattresses of this kind, after having been in use a shorttime, become sagged down in the middle which impairs both their looksand usefulness. My device for preventing this sagging of the mattressconsists of a steel spring or springs, the lower end or ends of whichare secured to the lower part or bottom of the mattress, and the upperend or bight of which bears against a strip of metal, the ends of whichare secured to the frame of the woven wire and which passes across themattress from one side to the other beneath the surface of the wovenwire.

In the accompanying drawings, forming part of this specification, and inwhich similar letters of reference indicate similar parts throughout theseveral views:Figure 1, is a plan of part of a woven wire mattressfurnished with my improvement; Fig. 2, a sectional view on line l2-Fig.1; Fig. 3, a plan of spring, Fig. 2; Figs.& and 5,sectional views online 12Fig. 1, showing modifications of my invention, the helicalsprings being omitted and Fig. 6, a sectional view of a mattress, boththe top and bottom of which are composed of woven wire, the helicalsprings being omitted.

A. is the sheet of woven wire, B. the metallic frame surrounding thesheet A. 0., bottom, composed of wood or metal slats D. E., helicalsprings. F. strip of metal extending across the mattress and below thesheet of woven wire A., and the ends of which are secured to the frameB. G., spring, secured to bottom 0. and to metal strip F.

The spring G. may have any convenient or suitable form. In Fig. 1 it iscircular or elliptic in shape; its ends are furnished with slots a, asshown in Fig. 3, and these ends are secured by bolts or rive s to thebottom 0. The central part of the spring is secured by rivets, orotherwise, to the strip F. The slots ct allow the spring G. to beexpanded when the weight of the body is upon the mattress.

In Fig. 4:,the spring G. has one end secured to the bottom 0. and theother to the strip F. In Fig. 5 the spring has a Z shape.

In Fi 6 a Z shaped spring is shown applied to a mattress, both the topand bottom of which consist of woven wire.

The springs G. act to keep the strips F. horizontal and these strips,having their ends secured to the frame B. of the mattress A. always,where there is no weight upon the mattress, keep the sides of themattress apart and thus insure its keeping flat.

Having thus described my invention, I claim The combination in amattress of a sheet of woven wire, a frame to which the edges of saidsheet of woven wire are secured, a strip or strips of metal, the ends ofwhich are secured to the lower part of the said frame at some distancebelow the woven Wire and which extend transversely from one side of saidframe to the other and beneath said sheet of woven wire, abottomconstructed of transverse and longitudinal slats, helical springssecured to said bottom and to said sheet of woven wire and springssecured to said bottom and to the center of said transverse strips ofmetal carried by the frame of the woven wire.

GEORGE W. SELTZER, CHAS. A. BUTTER.

